System and Network Administrator

Company: Booz Allen Hamilton
Location: Annapolis Junction
Posted on: April 1, 2026

Job Description:

System and Network Administrator The Opportunity: A well-designed network is critical to move data and enable organizations to achieve their missions, but how can an organization make sure their network will fit their evolving needs? Crafting the right network, with the right equipment and sof tware, requires a combination of te chn ical skill and careful planning. That’s why we need you, an experienced network engineer who knows how to develop the exact network the DoD needs. As a network engineer on our team, you’ll use your experience in network design and architecture, system interoperability, OSI model, network transport layers, multi-protocol label switching, gateway protocol, and virtual routing and forwarding to support the nation’s defense and resp ond to evolving adversaries. You’ll upgrade or develop enterprise-wide infrastructure, troubleshoot and resolve complex network issues, analyze current working infrastructures, and increase security, reliability, and availability for mission-critical network systems. You’ll apply your expertise in routing and switching, integration of encryption gear, network design and architecture, system interoperability, IP engineering, network transport layers, multi-protocol label switching, gateway protocol, and virtual routing and forwarding as you join our team of problem-solvers to help the DoD evolve and deploy new capabilities and te chn ologies. Your knowledge of network protocols, equipment, emerging te chn ology, and configurations will come in handy as you optimize client operations and modernization. Using your experience in cryptographic equipment, cryptography, key management, sof tware and hardware firewalls, Cisco hardware, Palo Alto firewalls, cloud migration, optical infrastructure networking, virtual routing and forwarding, and SolarWinds, you’ll serve as a t rus ted advisor to clients on mission-critical projects. Using your te chn ical curiosity and knowledge of industry standards, you’ll make an impact on national security missions. Join us. The world can’t wait. You Have: 10 years of experience with network or system administration Experience with Linux, including maintaining RHEL, Rocky or Ubuntu Experience maintaining and administering Cisco networking switches Experience maintaining and administering Cisco routers Experience maintaining and administering Cisco FirePower Thread Defense firewalls Ability to maintain software development infrastructure supporting multiple environments and networks in a fast-paced and highly technical environment Ability to take initiative and make recommendations on existing infrastructures TS/SCI clearance with a polygraph HS diploma or GED Security Certification and Networking certification, such as CCNA Nice If You Have: Experience maintaining VMware ESXi hosts and virtual machines (VMs) Experience with Kubernetes, Docker, and Docker Compose Experience maintaining Network Appliance, such as Netapp for storage arrays or technologies Experience maintaining a Windows 11, and maintaining a Microsoft Active Directory and Group Policy environment Experience with Oracle Hardware and Solaris OS, including x86 and SPARC Experience facilitating or implementing Information Security Best Practices, including security compliance initiatives such as patching, IAVA remediation, and POA&M development Experience with Splunk logging and NESSUS vulnerability scanning Experience with Kanban or Agile methodologies, and project management applications, such as Jira or Redmine Possession of excellent verbal and written communication skills Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information ; TS/SCI clearance with polygraph is required. Compensation At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $77,600.00 to $176,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees. This posting will close within 90 days from the Posting Date. Identity Statement As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud. Candidate AI Usage Policy AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided . Work Model Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings. Remote : If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility. Hybrid : If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility. Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

Keywords: Booz Allen Hamilton, Philadelphia , System and Network Administrator, IT / Software / Systems , Annapolis Junction, Pennsylvania